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BMW Chassis Reinforcement Kits & Parts

As much of an "Ultimate Driving Machine" it is, many BMW models unfortunately suffer from weak points in the chassis. Over the years we have uncovered many weak or failure-prone areas in the chassis and have developed our own reinforcing solutions for them. And we continue to be the leading experts on BMW chassis reinforcing. Failures can come from a number, or combination, of causes: improper maintenance, age and mileage, poor design, environmental factors, poor repair work, and over-stressing modifications. The longer you let your car go without repairing or reinforcing these areas, the closer it gets to crumbling apart. Our chassis reinforcement kits are designed to first identify potential weak points and then strengthen and reinforce the existing design.

Most of our kits are not labor intensive although welding is usually required. If you suspect your chassis may have structural problems we recommend taking it to a well-known bodyshop or restoration shop. (find out who your local BMW dealer uses - we sell many of our kits to dealer-authorized repair shops). Making the preventative fix simple and effective is better than a long and complicated repair after the failure. Our kits are not usually used for fixing existing damage (only your body shop can determine the correct course of action). But our kits have been proven under extreme conditions on racetracks around the world to prevent many of the costly - and dangerous - chassis problems.

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4mm Heavy Duty Rear Shock Mount Reinforcement Plate Set

T#:376177

Part#: 002478ECS01KT

In Stock

Sale - Save 25% $ 85.99

This product was last offered at the strikethrough price on
06-13-2026

$ 64.48 USD

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Sale - Save 25%

$ 85.99

This product was last offered at the strikethrough price on
06-13-2026

$ 64.48 USD

Add to Wish List

A very common weak point on the 3 series BMW is the sheetmetal of the rear shock tower. The sheetmetal here is relatively thin and very susceptible to stress and fatigue. A worn out shock will bottom-out more often and this energy is transferred through the bump stop and into the metal chassis. Stiffer shocks and shock mounts also put more stress on the sheetmetal. Factor in age, mileage, and environmental conditions and it's not a surprise that we see shock tower failures often. BMW addressed this issue with reinforcements of their own but our's are thicker for additional strength. This kit mounts on top of the shock tower and can either be bolted or welded in place. Because of the shape of the rear shock tower, these do not fit cabrio/convertible cars.

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Suspension Reinforcement Kit

T#:15677561

Part#: 51717036781-KT

In Stock

Sale - Save 16% $ 265.00

This product was last offered at the strikethrough price on
04-03-2026

$ 221.81 USD

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Qty

Sale - Save 16%

$ 265.00

This product was last offered at the strikethrough price on
04-03-2026

$ 221.81 USD

Add to Wish List

If you already upgraded your suspension but are looking for the finishing touch, this kit is what you need. The BMW front strut mount reinforcement plates reduce the risk of the shock tower mushrooming and cracking. The ECS rear shock mount reinforcement plates reduce the risk of the rear shock mount area tearing and deforming. The ECS Delrin rear trailing arm bushing limiters reduce the movement that the RTAB's can make resulting in a tighter rear suspension and with less moment prolongs the bushing life.

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Turner Front Suspension Refresh Kit - Level 3 - E36 M3 S52 3.2L (with...

T#:21703006

Part#: T31122228461NCKT

In Stock

Sale - Save 7% $ 516.99

This product was last offered at the strikethrough price on
03-02-2026

$ 480.90 USD

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Qty

Sale - Save 7%

$ 516.99

This product was last offered at the strikethrough price on
03-02-2026

$ 480.90 USD

Add to Wish List

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BMW Chassis Reinforcement Kits & Parts

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4mm Heavy Duty Rear Shock Mount Reinforcement Plate Set

Suspension Reinforcement Kit

Turner Front Suspension Refresh Kit - Level 3 - E36 M3 S52 3.2L (with...

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